DE2313601A1 - FLEXIBLE SLIDE MAGAZINE WITH VARIABLE CAPACITY - Google Patents

Description

Patent attorneys

Dr> ing> HANS RUSCHfCE

DfpWng.HENZ AGULAR 23 1 3BO 1

8 Mür.disn 60, Pi irac-nauerstr. 2

Munich, 19.3ο73

Spindler & Sauppe, Inc., North Hollywood, California

U ₀ S ₀ A.

• 'Flexible slide magazine with changeable

Capacity "

The present invention relates to projectors for slides and, more particularly, to a slide magazine with variable capacity comprising a plurality of movably arranged separating plates held together by a joint member, of which adjacent ones each cooperate and a single slide
hold until it is transferred to the projector.

Various slide magazines have been developed which are provided in the one for transferring the slide
Position, but these arrangements include cage portions which are avoided in the apparatus of the present invention. The previously known devices are arrangements in which shell-shaped,

309839/1003

drum-shaped, or band-shaped magazines can be used. As advantageous features of the bowl-shaped magazines are The compact structure and good utilization of the magazine space should be mentioned, but the capacity is limited in each case. at In the drum-shaped arrangements, the capacity is also limited and the magazine space is not very much appropriately exploited. Some of the previously proposed band-shaped magazine arrangements can be enlarged, but they are bulky, complicated in structure and therefore prone to failure, are easily damaged and cannot be used with front or front projection screens Use the rear without reloading the slides to align the projection accordingly.

The present invention provides an improved lightweight, extremely compact, adaptable magazine, the The absorption capacity can be increased to any desired value, and this can be done without reloading with projection screens for Can be used for projection from the front or from the rear. The magazine is conveniently in the form of sub-units suitable size, i.e. for example to hold 50 or 100 slides. Let these subunits easily and quickly put together in any number as an incomplete or closed loop and • turn around when transferring projection surfaces with frontal projection to those with rear projection necessary is. Each sub-unit consists of several equal

- 309839/100 3

like plates, their opposite side halves are symmetrical, with adjacent plates cooperating to hold a single slide in a magazine cell. All panels are flexibly connected to one another along one outer edge by a flexible band. The bendable one. Tape strips opposite edges can be on top of each other be pivoted to or away from each other, as is necessary to unite several sub-units 2U of a loop is, as well as to adapt to the locking drum of the one used Projector. When not in use, the sub-units of the magazine are parallel to each other and result in compact strips that can be conveniently stored.

Slides can be inserted or removed from both sides of the magazine. The slides are between the partition plates are held in place by flexible snap devices made in one piece with the plates. An outside edge of the plates is each designed to be complementary to a retaining tooth attached to the latching sections, independently whether it is drum-like or frame-like projector magazines acts. In an exemplary embodiment, the panels are made of a lightweight yet strong material Plastic material pressed and with interlocking Depressions and projections provided so that the plates are held opposite one another, but on top of one another are movable to or away from each other and in relation

309839/1003

are blocked from moving in other directions. The opposite Side edges of the plates are stepped so that the edges of the slides protrude beyond them. The slides can therefore by the operator of the projector with your fingers, or from the projector's insertion mechanism be touched.

It is a primary object of the present invention to provide a bendable, reversible slide magazine with variable fit for use with slide projectors. -, *,

Another object of the invention is to provide a simple, stable, extremely useful slide magazine, which can be stored in a stretched state and can be bent to a limited extent in one plane.

Another object of the invention is to create a slide magazine of variable capacity, which can be composed of several, similar plates is constructed, which are held together by a common "connecting part and in pairs for Hold one slide each.

The invention also has the aim of several similar to create lightweight panels that interlock to allow limited rotation of the panels with respect to each other in one Level is possible, with suitable holding devices holding the plates flexibly connected to one another.

Another object of the invention is to provide bendable slide magazines to create, which at opposite ends with front

309 839/100 3

directions for plugging the magazine sub-units together are provided, creating a closed or open loop with any size for slides Magazine sub-units can be produced.

Another object of the invention is a slide magazine unit to create, which consists of several separate plates, which in turn work together so that magazine cells for individual slides, the outer edges being Plates are each formed complementary to adjustment approaches on the locking devices of the projector.

Another object of the invention is to provide a reversible slide magazine to create, with the slides inserted in the correct position on a projection screen from the front or can be projected at the rear without reloading the slides.

Another object of the invention is to provide a slide magazine for receiving and dispensing slides, which are entered from the side of a slide projector, with separate approaches acting as pawls both sides of the magazine are provided.

The invention finally aims to create a slide magazine composed of several plates, the Plates are arranged side by side and hold a slide in pairs in a releasable manner.

These and other objects of the invention will emerge from of the following description and claims with reference to the accompanying drawings of a preferred one

309839/1003

Embodiment.

Figure 1 is a partial elevation of a bast drum mechanism for holding one or more magazine sub-units of the present invention.

FIG. 2 is a partially enlarged cross-section through the upper part of FIG. 1 and shows parts of three magazine sub-units, which are plugged together and attached to the latching mechanism shown in FIG.

Figure 3 is a partial, along that of Figure 2 with 3-3 designated line taken cross section through individual parts of the magazine on the locking drum holding the snap mechanism.

Figure 4 is a partial cross-section along that in Figure 2 with 4-4 denoted line and shows further sections of the slides from the magazine in the projector transferring devices. ^

Figure 5 is a partial cross-sectional view taken along the line labeled 5-5 in Figure 4 showing details opposite end sections of the magazine unit, which are shown with the clamping band holding the separating plates together is.

FIG. 6 is a top plan view of that shown in FIG Subunit.

Figures 6a and 6b are partial cross-sections along the in Figure 6 with 6a-6a and show the plates in the adjacent (Figure 6a) baw. pulled apart

3'09 8 39/100 3

genen (Figure 6b) adjusting ring.

Figure 7 is an exploded perspective view

View of the flexible band for the disks and shows a zelheiten _r of the belt at a particular end plate at one end of the magazine unit.

Figure 8 is a partial exploded view of adjacent ends of the tie strap of two separate magazine units and the coupling device for connecting the two units.

Finally, FIG. 9 is a partially enlarged cross-sectional view the interlocking ends of two magazine units of the type shown on the right-hand side of Figure 2.

Figures 1 and 2 show a drum-like, on the Progektor Attached locking device for use with the changeable slide magazine, which comes in the form of three nested Subunits A, B and C are shown in FIG. Figure 2 shows two plates of the sub-unit A on the left side, while subunit B extends from the left side of Figure 2 to the right side, on the two subsequent end plates of the sub-unit C are shown.

Each of the magazines A, B, C consists of several similar plates 12, an end plate 13 made of metal (Figure 7) on the right side of each magazine unit, and a flexible connecting strap 14 (Figures 2 and 7) that goes through the individual plates on the outer edge of the same runs

309839/1003

- 8th - ' . ■ 231360T

and plates 12, 13 interconnect. The illustrated bast mechanism 10 comprises a drum 15 'in the vertical plane runs on rollers 16, which in turn are carried by a suitable holder 17. How special As seen in Figures 2 and 4, the lower edge 19 of each plate 12 is designed to engage the two Rows of adjusting teeth 20 on the outer circumference of the drum 15 takes place. The adjusting teeth hold the plates apart spread out and in the correct position in relation to the slide insertion and transfer mechanism known form, which is therefore not the subject of the present invention.

The individual components of the sub-units A, B, C are with reference to Figures 2 and 4-8. Each of the partition plates is expediently made of a tough, resistant, thermoplastic material with a wall thickness of about 1 mm and has the in Figure 4 shown form. The lower edge of the plates is designed so that two rows of wedge-shaped teeth 19 »19 (Fig 4) result on both sides of the connecting band 14. These Teeth are in engagement with complementary rows of teeth 20, 20 on the adjacent periphery of the drum 15 (FIG. 2), Deep cuts are made at the two ends of the lower edge to allow clearance for the movement of two accordingly aligned, opposing snap handles 23, 24 for the corresponding slide when actuated

. ·. 309 839/100 3

to result (Figure 4). The distance between the teeth of these elastically bendable snap handles is slightly larger than the normal dimensions of a conventional projector slide 25, the outline of which in Figure 4- by the dash-dotted line is shown. When the slide is properly inserted in the magazine, the two interacting snap handles will release it 23, 24 until one of them is printed under the trailing edge of the slide.

Opposite side edges of each plate are also provided with incisions 26, 26 (Figure 4), so that in each case one Section at opposite edges of the slide 25 is exposed. The operator can therefore use the slide Take out with your thumb and forefinger after having pressed down one of the snap handles 23, 24 beforehand. the Incisions 26 also enable a feed lever of the slide transfer mechanism to be in the plane of the plate Can be swiveled in when a slide is transferred to the projector for projection or brought back after its projection is, for which purpose the stamp 28 shown on the left-hand side of FIG. 4 is used.

The side surfaces running towards one another at the bottom Section 28a on the right side of the punch 28 can enter between two adjacent plates and spread them apart, when the stamp touches the edge of a slide ^ and transfer it from the magazine to the projector. The upper portion 28b of the punch is opposite the side surfaces

309839/1003

thickened and can, the panels by a small amount in Shift the longitudinal direction of the magazine 12, whereby a certain pair of plates is moved for adjustment on the slide insertion opening, not shown, of the projector will. Upper part 28b also fills the magazine space for a slide and thus prevents the stamp penetrate between a plate and the surface of the slide and thereby the slide transport into the Can lock projection position. An unlock lever 29 is swiveling. attached to the other side of the magazine and rotates counterclockwise towards snap handle 24, around the same to trigger the slide when it Push down the transfer into the projection position.

From the above explanations and the drawings, in particular Figure 4, it can be seen that the magazine is perfect is designed symmetrically so that slides can be used on each side of individual magazine cells. The the Slide conveying parts 27, 28, 29 are equally effective, regardless of which end of the magazine facing forward on the drum. The adjusting teeth 20 of the drum are also mounted so that the radial direction running bisector line through magazine cells with the Radial plane through the drum teeth coincides independently of the two possible positions of use of the magazine on the drum. These are important characteristics because one loaded drum can with either end first

309 8 39/1003

a front or rear projector can be used without reloading the slides for Achieving the correct image position is necessary "

The flexible metallic connecting band H, the several Plates 12 holding side by side, runs loosely through a right-angled Opening 31 at the lower end of each plate. The front The end of the belt 14 (Figures 5 »6» 7) is provided with an opening 32 into which an integral part of the end plate 13 made of metal approach 33 engages. At the left-hand end of the connecting band 14 is a corresponding, downwardly rotated extension 35 'is provided, which protrudes with respect to the extension 35 of the end plate 13. One protruding upwards Rabbit 36 rests against the outer wall of the end plate at the left end of the magazine. The flexible connecting band 14 holds a certain number of plates 12 together loosely enough so that the magazine can assume a curved shape.

It is of particular importance to design the plates appropriately so that excessive twisting of adjacent pairs of plates is avoided cannot occur, as this would allow the slides to emerge from the upper edge of the device. Suitable devices are shown particularly in FIGS. 2 and 9, FIG. 9 being an enlarged cross-section shows through the upper edge of several adjacent panels. The top edge of each plate has a T-shaped cross-section, where Sections of the T-crossbar to the left and right across the

309 839/1003 ^;

corresponding plate sides protrude. The left edge of the T-crossbar has a snap latch that runs upwards 38, while a vertical recess 39 for receiving the latch 38 of the adjacent plate on the the other end of the! As in figure 9, the two right-hand panels 12, 12 'are placed on the latch 38 on the right-hand panel certain maximum distance spread. The movement of the plates on each other is due to the left-sided abutment The latch of the latch 38 is limited to the next, left-hand panel.

FIG. 9 also shows the interaction of the snap lugs 40, 40 at the upper end of the end plate 13 (Figure 7) when locking the upper ends of two magazine units, for example of the units B and C. As can be seen from FIG. 8, the snap lugs 40 enter openings 41 when they are plugged together in the retaining strip 42, which is made as a cast piece in one piece with the upper edge of the T-shaped section of a single plate 12a one of the magazines is formed at the left end (Figure 5) «The operator moves the ends of two magazine sections, so that snap lugs 40 snap into openings 41 of the other magazine, and then moves the two magazines transversely their ends, whereupon the assembled position of the magazines B and C shown in Figure 2 is obtained;

Interlocking depressions and ridges cooperate with each other and with other mating panel sections

309839/1003

together, so that opposing magazine sections are twisted around the longitudinal axis is avoided. The elevations are on both sides of the band H in the figures 4- and 5 attached · For example the right side of the plate 12 is provided with elongated cutouts 45 into which the correspondingly tapering gate projections 46 protrude from the left side of the plate. A second pair of interlocking protrusions and depressions 47, (Figure 2) is arranged in the plane of the belt 14 on both sides of the same. The end plate 12a at one end of the The magazine is differently designed without elevations 46, 47, so that adjacent ends of two magazine sub-units when Assembling can be moved transversely to each other, with the magazine sub-units when assembling or disassembling can be placed on the drum 15 or removed from it.

From the above it follows that a single magazine with a capacity of 50 to 100 slides consists of one of the units shown in FIGS. 5 and 6, most of them for the sake of simplicity Plates have been omitted from the figures. The respective number of panels is supported by a single connecting band 14 held together, one end of which is connected to the end plate of the magazine, while in the opening 32 on right end of the approach 33 of the end plate 13 is inserted. The end plate expediently made of sheet metal forms

309839/1003

-H-

together with the plate 12 adjoining them, a magazine cell for a slide inserted at the right-hand end of the magazine. The arrangement can stand alone or together with several similar magazine sub-units, including the abutting ends of the subunits in which. with reference to Figures 2 and 9 are connected to each other in the manner described. In the compound State, the end plate lies smoothly against the last plate of the second magazine unit, as can be seen from FIG.

One or more magazine sub-units can be removed from the latching mechanism 10 in the manner shown in FIG appropriate. At intervals on the periphery of the drum 15 For example, pairs of separate pawl members 50, 50 facing in opposite directions are mounted on a pivot 51 are stored. The pawl parts are beveled and can thus be hooked from the lower corners a magazine unit outgoing approaches 35 », 35 'take up. As best shown in Figures 2 and 7, the retaining lug 35 is supported by the lower edge of the end plate 13 carried while lug 35 'at one end of the flexible Yerbindungsbands 14 is attached. The pawl parts 50, 50 are expediently pressed away from one another by springs or other means (not shown).

To put a single magazine on drum 15, the magazine is placed on top of the drum, whereby

309839/1003

Approaches 35, 35 'to align with corresponding pawl parts 50, 50 are. When the magazine unit is pressed down, the lugs 35, 35 ′ come into engagement with the pawl parts 50 and push them into the open position so that the pawl parts eventually encompass the lugs 35, 35 'when the magazine is in the fitted position on the drum. The pawl parts 50, 50 are connected by linkage 52, and a common trip lever 53 interconnected which is rotatably mounted at point 54 on the drum. the Actuation of the assigned pair of pawl parts 50, 50 by the lever is shown in FIG. 3. Release lever 53 protrudes beyond the drum and is mounted in a slot with an extension 55 (Figure 3). The latch parts can be locked in the open position if necessary if, for example, an endless magazine in tape form is used. If necessary, the entire circumference of the drum can be equipped with magazine sub-units.

If more magazine sub-units are used than are necessary to fill the drum 15, the in Coupling device 60 shown in FIG. 8 is used. The coupling device typically comprises a rectangular one Block 61, the opposite ends of which are formed to fit into the U-shaped lugs 35, 35 '. Each end half of the block 61 is provided with a bracket 62 which is formed so that it the outer end portion of a corresponding Approach 35, 35 'overlaps. In Figure 8 is one

309839/1003

the retaining bracket 62 is shown in the assembled state in which it engages around the outer sides of the extension 35 'while the other retaining bracket 62 is in the notched position next magazine subunit is ready · Haehdem the next Magazine subunit has been placed over the free end of block 61, retaining bracket 62 is clockwise over the rear end of tab 35 is pushed in the manner described above with reference to tab 35 '.

Any number of magazine sub-units can be clicked into place connected to each other, with the help of the Coupling device 60 can be created a closed loop. This flexible loop can be pulled over the Evert the upper part of the drum 15, with the lower edges of the individual plates between the teeth 20 of the drum come lying down. Before the magazine loop over the drum is turned inside out, the lever 53 for the pawl parts is rotated counterclockwise and into the recess 55 pressed, whereby all the pawl parts 50 remain completely withdrawn and therefore not when the magazine loop is put on on the drum, disturb., The magazine loop rests only under the influence of gravity on the drum and only those above one running through the drum axis Plates located horizontally are engaged with teeth 20 on the drum. The magazine loop

309839/1003

can therefore be easily removed from the drum or placed on it without having to operate the pawl parts 50, which remain completely retracted.

Although the drive mechanism for the locking device 10 does not represent a rope of the present invention, FIG. 4 shows that the drum has teeth 63 on one side is provided which meshes with a drive gear 64 stand.

The slide magazine described in detail above variable capacity allows the objects and advantages of the present invention to be achieved to the full To achieve dimensions, but it represents an embodiment of the invention, within the scope of which is modified by the following claims as defined are possible.

309839/1003

Claims (21)

PAIBia AISPHUOHE Γΐ J Flexible slide magazine with changeable Fit, built up from several side by side arranged thin-walled plates (12, 12a, 19, 25, 24, 26, A, B), of which adjacent plates cooperate as a holder serve for a single slide inserted between these plates, characterized by devices (13, H, 31, 32, 33, 35 ', 36, 38-42, 45, 46, 47, 50-53, 60; Pigur 6a) for interlocking assembly of the plates so that the plates only overlap to a limited extent move towards or away from each other. 2. Slide magazine according to claim 1, characterized by a flexible connecting part (14) common to all panels in the devices for interlocking assembly. 3. Slide magazine according to claim 1, characterized similarly assembled by first and second units (A, B) Plate sets with devices (13, 33, 40, 41, 42, 60) for holding the two units together at the ends. 4. Slide magazine according to claim 3, characterized by means of devices (13, 33, 40, 41, 42) for mechanical connection of the corresponding locking devices for the first and second set of plates. 5. slide magazine according to claim 4, characterized 309839/1003 draws that the devices for mechanical connection of the first and second sets of plates comprise devices (40, 41, 42) defining radially opposite edges of the plates join together at the adjacent ends of the first and second sets of plates. 6. Slide magazine according to claim 4, characterized in that the mechanical connecting devices are thin, comprise metal plates 13 resting on one side of an end plate 7. Slide magazine according to claim 2, characterized in that the biegbaim locking devices through a right-angled opening (31) are guided transversely to the aligned plates. 8. Slide magazine according to claim 2, characterized in that interlocking elevations (46, 47) and recesses (45) on opposing plate sides on the deflectable locking devices for alignment of the plates are attached. 9. Slide magazine according to claim 2, characterized in that the locking devices interlocking Latches (38) and openings (39) on the panel edges remote from the flexible locking devices have, so that the amount of rotation is limited while increasing the distance between the plates. 10. Slide magazine according to claim 2, characterized in that the Yexxle ^ ctur »ao itci"r> *. Jh>*>% Z ' η in one another 309839/1003 engaging splashes (Figure 6a) include those of opposite Sides of the panels start at the outer edges remote from the flexible locking devices. 11. Slide magazine according to claim 1, characterized by means of snap handles (23, 24) for slides, which interact with the plates each time a single slide Hold it releasably between adjacent panels. 12. Slide magazine according to claim 11, characterized in that the snap handles for triggering a slide are formed from each side edge of the panels. 13 · Slide magazine according to claim 1, characterized in that that a set of adjacent edges of the plates are provided with wedge-shaped teeth (19) which engage in the locking mechanism Reach into the projection position of the projector to lock the panels into place. 14. Slide magazine according to claim 13, characterized by a movable support device (15) for the plate sets. 15. Slide magazine according to claim 14, characterized in that that the locking devices have a locking mechanism attached to the movable retaining device (50, 51, 52, 53) which engage the plate set and the plates temporarily on the drum can hold on to snap into a projection station. 16. Slide magazine according to claim 14, characterized in that that the movable support device as a drum '3 09 839/1003 (15) is formed, and that the plates only with a portion of the outer periphery of the drum in bearing contact stand" 17. Slide magazine according to claim 1, characterized in that that the side edges of the panels are provided with incisions (26) running towards the centers of the panels, so that the side edges of the slides held between adjacent plates over the edges of the incisions protrude and allow the slides to be touched to insert or "allow removal" 18. Slide magazine according to claim 1, characterized in that that opposite side edges of the incisions (26) in the plates are beveled to provide a guide to Introduce the slides to create between panels. 19 · Slide magazine according to claim 2, characterized in that at the opposite ends of the bendable Locking devices Devices (32, 35 '»36) for coupling to a second flexible locking device are attached, whereby the capacity of the magazine for slides increases or decreases as needed can be. 20 «slide magazine according to claim 16, characterized in that the transverse plane of the bisecting line between adjacent plates the associated devices for aligning each magazine cell between the holding devices divides so that a slide from the magazine 309839/1003 be transferred into the projection division in the projector can, regardless of which of the end plates of the set is located on the front of the drum 21. Slide magazine according to claim 5, characterized in that the devices for holding together the
Units include a flexible coupling (60) bridging adjacent ends and locking the adjacent ends together. 309839/1003 Blank page